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Combined analysis of Radar T3 and VIMS T20 observations: preliminary results on possible cryovolvanic flows on Titan

Le Corre, L. and Le Mouelic, S. and Sotin, C. and Rodriguez, S. and Tobie, G. and Brown, R.H. and Barnes, J. and Buratti, B. and Sonderblom, L.A. and Jaumann, Ralf and Lopez, R. and Baines, K.H. and Clark, R. and Nicholson, P.D. (2007) Combined analysis of Radar T3 and VIMS T20 observations: preliminary results on possible cryovolvanic flows on Titan. In: Lunar and Planetary Science XXXVIII, 1338, Abstract#1828. Lunar and Planetary Institute, Houston. 38th Lunar and Plantetary Science Conference, 2007-03-12 - 2007-03-16, League City, TX (USA). ISSN 1540-7845

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Official URL: http://www.lpi.usra.edu/meetings/lpsc2007/pdf/1828.pdf

Abstract

The Visual and Infrared Mapping Spectrometer (VIMS) aboard Cassini spacecraft allows us to characterize spectral properties of Titan’s surface through the atmosphere in seven narrow windows in the near infrared [1,2]. VIMS acquires images in 64*64 pixels cubes, with a 352 channels spectrum acquired for each pixel. The best resolution obtained so far was 1.4 km/pixel during T4 flyby (31 March 2005). A new observing strategy has been tested during T20 (25 October 2006) in order to observe at closest approach. It consists in acquiring a succession of single lines (using the first scanning mirror), the second dimension of the image being given by the evolution of the groundtrack of the satellite (instead of using the second scanning mirror). This new line mode provides a wider surface coverage than the nominal snapshot mode, and a spatial resolution of ~500 m/pixel at closest approach (which could go down to 250 m/pixel if the double resolution mode is used). We focus here on these new T20 VIMS data which crosses previous observations from the RADAR instrument recorded during the T3 flyby. The radar (in SAR mode) is mainly sensitive to surface roughness, dielectric constant variation and topography, and it can also probe the subsurface materials. Both data sets are therefore very complementary.

Item URL in elib:https://elib.dlr.de/51359/
Document Type:Conference or Workshop Item (Poster)
Title:Combined analysis of Radar T3 and VIMS T20 observations: preliminary results on possible cryovolvanic flows on Titan
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Le Corre, L.Laboratoire de Planétologie et Géodynamique, 2 rue de la Houssinière, 44322 NantesUNSPECIFIED
Le Mouelic, S.Laboratoire de Planétologie et Géodynamique, 2 rue de la Houssinière, 44322 NantesUNSPECIFIED
Sotin, C.Laboratoire de Planétologie et Géodynamique, 2 rue de la Houssinière, 44322 NantesUNSPECIFIED
Rodriguez, S.Laboratoire de Planétologie et Géodynamique, 2 rue de la Houssinière, 44322 NantesUNSPECIFIED
Tobie, G.Laboratoire de Planétologie et Géodynamique, 2 rue de la Houssinière, 44322 NantesUNSPECIFIED
Brown, R.H.Lunar and Planetary Lab and Stewart Observatory, University of ArizonaUNSPECIFIED
Barnes, J.Lunar and Planetary Lab and Stewart Observatory, University of ArizonaUNSPECIFIED
Buratti, B.JPL, PasadenaUNSPECIFIED
Sonderblom, L.A.USGS, Flagstaff, USAUNSPECIFIED
Jaumann, RalfUNSPECIFIEDUNSPECIFIED
Lopez, R.JPL, PasadenaUNSPECIFIED
Baines, K.H.JPL, PasadenaUNSPECIFIED
Clark, R.USGS, DenverUNSPECIFIED
Nicholson, P.D.Cornell University, Astronomy Departement, IthacaUNSPECIFIED
Date:2007
Journal or Publication Title:Lunar and Planetary Science XXXVIII
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Volume:1338
Page Range:Abstract#1828
Publisher:Lunar and Planetary Institute, Houston
Series Name:LPI Contribution
ISSN:1540-7845
Status:Published
Keywords:Radar T3, VIMS T20, Cryovolcanic Flows, Titan
Event Title:38th Lunar and Plantetary Science Conference
Event Location:League City, TX (USA)
Event Type:international Conference
Event Dates:2007-03-12 - 2007-03-16
Organizer:Lunar and Planetary Institute
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EW - Erforschung des Weltraums
DLR - Research area:Space
DLR - Program:W EW - Erforschung des Weltraums
DLR - Research theme (Project):W - Vorhaben CASSINI (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research
Deposited By: Lindemann, Michael
Deposited On:02 Oct 2007
Last Modified:31 Jul 2019 19:20

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